>> obama care? what's that that oh it's great. >> still, carrie underwood and brad paisley at the country music awards mocked on care to the tune of "amarillo valley ♪ ♪ oh this is getting on my last nerve ♪ ♪ obama care by morning over six people served ♪ >> in other developments insurer humana said it expects the white house to extend its six-month enrollment peopled you by six months. it's not currently under consideration the white house told us. norah and charlie? >> major, thank you. and this morning a new report rates the safety of child booster seats. it finds the more expensive models aren't always the safest. jeff pegues is at the national institute of highway safety in arlington, virginia. jeff, a lot of people are interested in these results. >> reporter: good morning, norah. it all falls on where the seat belt falls on your child. it should lie flat on the upper thigh of your child and the shoulder belt should fall right in the middle of the shoulder and the chest. according t